Stainless Steel

Greer Steel Company is now manufacturing cold rolled and annealed Martensitic stainless steels. We are currently processing Type 420 and have divided the specification into three different carbon levels as shown below.

Stainless Steel Processing

These steels are processed using our high-powered, reversing cold rolling mills which can produce very close gauge tolerances. In our state-of-the-art specialty strip mill, we can supply these spheroidized steels with a variety of surface finishes, standard and special edges, in either coils or cut-to-length sheets.

Martensitic stainless steels are used mostly for cutting tools, blades, knives, scissors, files, and for many other applications requiring good sharp edge retention, and/or high strength properties. These steels are almost always heat treated and are air-hardenable. The corrosion properties are optimum in the heat treated state.

Chemistry, %

Product

C

Mn

P

S

Si

Cr

420A

0.19-0.24

1.00Max.

0.040 Max.

0.030 Max.

1.00 Max.

12.00-14.00

420B

0.35-0.40

1.00Max.

0.040 Max.

0.030 Max.

1.00 Max.

12.00-14.00

420C

0.40-0.45

1.00Max.

0.040 Max.

0.030 Max.

1.00 Max.

12.00-14.00

410

0.08-0.15

1.00Max.

0.040 Max.

0.030 Max.

1.00 Max.

11.50-13.50

Hardness, RB (Spheroidized Structure)

Product

Hardness, RB

420A

88 Max.

420B

90 Max.

420C

90 Max.

410

85 Max. *

Availability

410, 420 A, B, C – 0.020” to 0.165” Widths up to 26” for all grades.

Greer Steel has an on-going development program for Martensitic stainless steels. For additional details on current and future Martensitic stainless grades from Greer Steel Company, please contact us.